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mirror of https://github.com/moparisthebest/SickRage synced 2024-11-05 17:05:03 -05:00
SickRage/lib/hachoir_parser/video/flv.py
echel0n 0d9fbc1ad7 Welcome to our SickBeard-TVRage Edition ...
This version of SickBeard uses both TVDB and TVRage to search and gather it's series data from allowing you to now have access to and download shows that you couldn't before because of being locked into only what TheTVDB had to offer.

Also this edition is based off the code we used in our XEM editon so it does come with scene numbering support as well as all the other features our XEM edition has to offer.

Please before using this with your existing database (sickbeard.db) please make a backup copy of it and delete any other database files such as cache.db and failed.db if present, we HIGHLY recommend starting out with no database files at all to make this a fresh start but the choice is at your own risk!

Enjoy!
2014-03-09 22:39:12 -07:00

158 lines
4.7 KiB
Python

"""
FLV video parser.
Documentation:
- FLV File format: http://osflash.org/flv
- libavformat from ffmpeg project
- flashticle: Python project to read Flash (SWF and FLV with AMF metadata)
http://undefined.org/python/#flashticle
Author: Victor Stinner
Creation date: 4 november 2006
"""
from lib.hachoir_parser import Parser
from lib.hachoir_core.field import (FieldSet,
UInt8, UInt24, UInt32, NullBits, NullBytes,
Bit, Bits, String, RawBytes, Enum)
from lib.hachoir_core.endian import BIG_ENDIAN
from lib.hachoir_parser.audio.mpeg_audio import Frame
from lib.hachoir_parser.video.amf import AMFObject
from lib.hachoir_core.tools import createDict
SAMPLING_RATE = {
0: ( 5512, "5.5 kHz"),
1: (11025, "11 kHz"),
2: (22050, "22.1 kHz"),
3: (44100, "44.1 kHz"),
}
SAMPLING_RATE_VALUE = createDict(SAMPLING_RATE, 0)
SAMPLING_RATE_TEXT = createDict(SAMPLING_RATE, 1)
AUDIO_CODEC_MP3 = 2
AUDIO_CODEC_NAME = {
0: u"Uncompressed",
1: u"ADPCM",
2: u"MP3",
5: u"Nellymoser 8kHz mono",
6: u"Nellymoser",
}
VIDEO_CODEC_NAME = {
2: u"Sorensen H.263",
3: u"Screen video",
4: u"On2 VP6",
}
FRAME_TYPE = {
1: u"keyframe",
2: u"inter frame",
3: u"disposable inter frame",
}
class Header(FieldSet):
def createFields(self):
yield String(self, "signature", 3, "FLV format signature", charset="ASCII")
yield UInt8(self, "version")
yield NullBits(self, "reserved[]", 5)
yield Bit(self, "type_flags_audio")
yield NullBits(self, "reserved[]", 1)
yield Bit(self, "type_flags_video")
yield UInt32(self, "data_offset")
def parseAudio(parent, size):
yield Enum(Bits(parent, "codec", 4, "Audio codec"), AUDIO_CODEC_NAME)
yield Enum(Bits(parent, "sampling_rate", 2, "Sampling rate"), SAMPLING_RATE_TEXT)
yield Bit(parent, "is_16bit", "16-bit or 8-bit per sample")
yield Bit(parent, "is_stereo", "Stereo or mono channel")
size -= 1
if 0 < size:
if parent["codec"].value == AUDIO_CODEC_MP3 :
yield Frame(parent, "music_data", size=size*8)
else:
yield RawBytes(parent, "music_data", size)
def parseVideo(parent, size):
yield Enum(Bits(parent, "frame_type", 4, "Frame type"), FRAME_TYPE)
yield Enum(Bits(parent, "codec", 4, "Video codec"), VIDEO_CODEC_NAME)
if 1 < size:
yield RawBytes(parent, "data", size-1)
def parseAMF(parent, size):
while parent.current_size < parent.size:
yield AMFObject(parent, "entry[]")
class Chunk(FieldSet):
tag_info = {
8: ("audio[]", parseAudio, ""),
9: ("video[]", parseVideo, ""),
18: ("metadata", parseAMF, ""),
}
def __init__(self, *args, **kw):
FieldSet.__init__(self, *args, **kw)
self._size = (11 + self["size"].value) * 8
tag = self["tag"].value
if tag in self.tag_info:
self._name, self.parser, self._description = self.tag_info[tag]
else:
self.parser = None
def createFields(self):
yield UInt8(self, "tag")
yield UInt24(self, "size", "Content size")
yield UInt24(self, "timestamp", "Timestamp in millisecond")
yield NullBytes(self, "reserved", 4)
size = self["size"].value
if size:
if self.parser:
for field in self.parser(self, size):
yield field
else:
yield RawBytes(self, "content", size)
def getSampleRate(self):
try:
return SAMPLING_RATE_VALUE[self["sampling_rate"].value]
except LookupError:
return None
class FlvFile(Parser):
PARSER_TAGS = {
"id": "flv",
"category": "video",
"file_ext": ("flv",),
"mime": (u"video/x-flv",),
"min_size": 9*4,
"magic": (
# Signature, version=1, flags=5 (video+audio), header size=9
("FLV\1\x05\0\0\0\x09", 0),
# Signature, version=1, flags=5 (video), header size=9
("FLV\1\x01\0\0\0\x09", 0),
),
"description": u"Macromedia Flash video"
}
endian = BIG_ENDIAN
def validate(self):
if self.stream.readBytes(0, 3) != "FLV":
return "Wrong file signature"
if self["header/data_offset"].value != 9:
return "Unknown data offset in main header"
return True
def createFields(self):
yield Header(self, "header")
yield UInt32(self, "prev_size[]", "Size of previous chunk")
while not self.eof:
yield Chunk(self, "chunk[]")
yield UInt32(self, "prev_size[]", "Size of previous chunk")
def createDescription(self):
return u"Macromedia Flash video version %s" % self["header/version"].value